badtransam97

iTrader: (5)

I really like the way my Hooker Aerochamber sounds, but am looking at either 3"true duals, or possibly the single 4"from the y back. I am wondering if if it can be done, or would even be worth it to run a 4"back and then tie into the aerochamber I have now. It is setup just like the factory muffler would be, with what 3" in and two 3"out I believe. Thanks in advance!

99Bluz28

iTrader: (35)

IMO, if you're going to keep the rear 3" muffler and tail pipe assembly the only way to benefit from having a 4" y-pipe exit is to run it straight into a 4"electric cut-out then into a 4" to 3" reducer, then back into your Hooker cat-back exhaust.

Nighthawk38

A friend of mine ran the 4 inch pipe from the y-pipe back to a do right before the axel. It sounds awesome, I don't think they gained much in HP. Their main reason to run 4 inch pipe was they had it available. If you have to buy it, it will costly.

RyanSws6

iTrader: (72)

I have 1 7/8 LTs into a 3" Y pipe into a 4" I pipe with a 4" electric cut out. Then it goes into a borla type 3" exh over the axle. There are no restrictors. The muffler I have is the old Stainless Steel SS LT1 2OTL. Open or closed the sound is just amazing. I feel more tq in the mid range with it open. I think the extra flow was like 4hp on the dyno. Most of the time I have it open and closed it just seems so quiet to me. Car doesn't seem to like the cutout closed.

00'TwistedLS1

I'm happy with my 3" duals even tho I drag all the freaking time I think 4" is overkill and will cause more harm than good as all motors need back pressure

99Bluz28

iTrader: (35)

FYI, dual 3" pipes out flow a single 4" pipe, so a 4" pipe is NOT overkill compared to a dual 3" exhaust.

Kingc8r

iTrader: (21)

You can do a 3in into a 4in merge pipe to a 4in Cutout then reduced back down to 3in. I'm not sure if Hooker offers a 4in muffler. I know magnaflow does since Mufflex offers a 4in CB....

99Bluz28

iTrader: (35)

4" in/out oval mufflers:
Other than Magnaflow, Hooker has the Max Flow, Borla the XR-1, Dynomax the Ultra Flo Welded, QTP the AR3 mullfer. All are oval and SS($122-$203), except the Hooker which is aluminized steel($73).
There's a bunch more than this, but these are just the ones I'd chose from.

00'TwistedLS1

I'm not saying mine is praticle but show me one thread to where a NA car gained power from going to a single 3" to 4" it's going to be a pure waste of money

99Bluz28

iTrader: (35)

Not knocking you having a dual 3"exhaust, just that you're failing to acknowledge that a single 4" pipe flows LESS than dual 3" pipes. So if we go by what you're saying, that going from a 3" to 4" exhaust is a pure waste of money, then wouldn't going from a single 3" to dual 3" be a even bigger pure waste of money...?

supergt99

iTrader: (1)

3" to 4" was an upgrade for me. Maybe for stock car it would be a waste of money. Only reason I didn't do duals was clearance.

HioSSilver

iTrader: (8)

Area for a dual 3" is ~14"squared

Area for a single 4" is 12.5" squared.

studderin

iTrader: (28)

i run a 4inch ipipe no cutout into a stock SLP 2OTL (3' inlet) muffler. taking the over the axle part off (4" long blended to 3) and with the 4inch Ipipe open before the reared was a 7whp gain

one fast zo6

iTrader: (490)

studderin any pics of your exhaust?

studderin

iTrader: (28)

ya lots in my build thread in the drag tech.